I have an MGCP gateway (a 2801 router, running 12.4(4)T1) used for FXO connections -- it has 3 4port FXO cards installed. 10 of the ports are configured in Callmanager 4.13. On one of the ports, whenever you make an inbound call, it rings once then gives dialtone for 8-10 seconds, then rings the phone listed in the "attendant" box in the gateway config. Outbound calls work just fine -- and the other lines all work as they're supposed to. Has anyone seen anything like this?
i checked to make sure the dial-peer for the port has a "service mgcpapp" command. I also did a debug dialpeer & it seems to check the dialpeer & find everything right at the end of that 10 second "secondary" dialtone.
also, you can't do anything with the secondary dialtone -- can't dial numbers or anything -- you just have to wait through it to get the phone ringing.